Naming Your Spouse as Sole Beneficiary in Canada — Pros and Pitfalls

Last updated July 4, 2026 · 4 min read
Quick answer
Naming your spouse as sole beneficiary is common and has real advantages — it is simple and lets assets pass tax-deferred through the spousal rollover. But it carries risks worth managing: if you both die together you need named alternates and a survivorship clause; in a blended family it can unintentionally disinherit your own children; and deferring everything to the survivor stacks a larger tax bill onto the second death.

Most Canadian couples write the same will: everything to you, and if you're gone, everything to the children. It is the default for good reason — it is simple, it honours a shared life, and the tax system rewards it. But "everything to my spouse, full stop" hides a handful of failure modes that surface only at the worst moments: a car accident that takes both spouses, a second marriage that quietly rewrites who inherits, a tax bill that doubles up on the second death. Naming a spouse as sole beneficiary is often the right call — it just should be a considered one, with guardrails.

This guide weighs the genuine advantages against the risks worth managing, for the common-law provinces and territories. It is general information, not advice for your family.

Why it is so common — and genuinely good

Two strong advantages explain the popularity of the sole-spouse plan. The first is simplicity: one beneficiary, no apportioning, an estate that settles cleanly. The second is tax. Transfers to a spouse or common-law partner generally qualify for the spousal rollover, so RRSPs and RRIFs pass tax-deferred and capital property transfers at its original cost base rather than triggering a deemed gain on the first death.[1] For a couple with shared children and an uncomplicated estate, leaving everything to each other is frequently the sensible default.

The risks below do not change that for many families — they just need to be addressed rather than assumed away.

Risk 1 — the common disaster

If you and your spouse die together or in close succession, a bare "all to my spouse" gift can fail, and the estate may fall into intestacy and pass to people you never chose.[3] Two simple clauses prevent this. A survivorship clause requires your spouse to survive you by a set period — 30 days is common — so assets do not ricochet through two estates in a week. And named contingent beneficiaries say who inherits if your spouse cannot. Together they close the gap.

Risk 2 — blended families

This is the big one. Once your spouse inherits everything outright, they generally own it outright — and can later leave it to whomever they wish, including their own children from another relationship. A well-intentioned "all to my spouse" can therefore disinherit your own children from a previous relationship, not through malice but through ordinary later decisions by the survivor. Where children from a prior relationship are in the picture, a spousal trust (a life interest for your spouse, with the remainder to your children) or specific gifts to your children at the first death are the usual fixes — see joint and spousal trusts in Canada.

Risk 3 — the second-death tax bill

Leaving everything to your spouse defers tax; it does not erase it. On the survivor's later death there is no spouse to roll to, so registered plans are generally brought into income and capital property is deemed sold at fair market value, with 50% of any gain taxable at the 2026 rate.[2] The result is a larger, concentrated bill on the second estate. That is not a reason to avoid the rollover — the deferral is valuable — but it is a reason to plan for the eventual tax with insurance or measured drawdowns.

Risk 4 — separation and divorce

Relationship breakdown can quietly undo a spousal gift. In British Columbia, a gift in a will to a spouse is generally revoked if the couple ceases to be spouses before death,[4] and other provinces have their own rules on the effect of divorce and separation. These defaults are helpful but inconsistent across the country, so the reliable move is to update your will and designations promptly when a relationship ends rather than trusting the statute to catch it.

Designations, not just the will

The same logic applies to registered plans and insurance, which pay the named beneficiary directly. Naming your spouse there secures the rollover and bypasses probate — but always add a contingent beneficiary so the asset has somewhere to go if your spouse cannot take it. A sole designation with no alternate is among the most common avoidable gaps.

What we focus on at It's Simple Will

The Will Creator makes it straightforward to do the sole-spouse plan properly — naming contingent beneficiaries and building in a survivorship period rather than leaving a bare gift exposed. For families where a simple spousal gift is not enough, our guides point you toward the trust structures and the professional advice that fit. For the foundations, see how to write a will in Canada.

Citations & sources

  1. [1]Doing taxes for someone who died (spousal rollover) — Canada Revenue Agency
  2. [2]Update on the CRA's administration of the proposed capital gains taxation changes (50% inclusion rate) — Canada Revenue Agency
  3. [3]Succession Law Reform Act, RSO 1990, c S.26 — intestate succession (fallback if a gift fails) — Government of Ontario
  4. [4]Wills, Estates and Succession Act, SBC 2009, c 13, s 56 — gift to spouse revoked on ceasing to be spouses — BC Laws, Government of British Columbia

Frequently asked questions

Is it a good idea to name my spouse as sole beneficiary?

For many couples with shared children and straightforward estates, yes — it is simple and tax-efficient through the spousal rollover. The strategy needs safeguards, though: contingent beneficiaries in case your spouse dies first or with you, and a closer look if you have children from a previous relationship.

What happens if my spouse and I die at the same time?

Without named alternates, the gift can fail and the estate may pass under intestacy rules to people you did not choose. A survivorship clause requiring your spouse to outlive you by a set period (often 30 days), plus contingent beneficiaries, prevents assets from bouncing between two estates and into the wrong hands.

Why is naming a spouse sole beneficiary risky in a blended family?

Because once your spouse inherits everything, they generally control it and can leave it to whomever they wish — often their own children, not yours. Leaving all to a second spouse can unintentionally disinherit children from an earlier relationship. A spousal trust or specific gifts to your children can address this.

Does leaving everything to my spouse save tax?

It defers tax rather than saving it. The spousal rollover lets registered plans and capital property pass to your spouse without immediate tax. The deferred tax surfaces on the second death, when there is no spouse to roll to, so the survivor's estate can face a larger one-time bill.

Should I still name contingent beneficiaries?

Yes, always. On both your will and your registered-plan and insurance designations, name alternates who inherit if your spouse cannot. A sole designation with no contingent beneficiary is one of the most common and easily avoided estate-planning gaps.

What if we separate or divorce later?

A gift to a spouse can be revoked by law if you cease to be spouses. In British Columbia, for example, a gift in a will to a spouse is generally revoked if you stop being spouses before death. Update your will and designations promptly on separation rather than relying on these default rules.

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